Run results for: Measure Single Text

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36 OPR/77.0.4054.203

Browser: Opera 77

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
offsetWidth	523909.8 Ops/sec
getBoundingClientRect	435884.4 Ops/sec
canvas	441052.0 Ops/sec

HTML Preparation code:

<div>Hello World</div>

Script Preparation code:

const canvas = document.createElement('canvas')
window.context = canvas.getContext('2d')

Tests:

offsetWidth
document.querySelector('div').offsetWidth
getBoundingClientRect
document.querySelector('div').getBoundingClientRect().width
canvas
window.context.measureText('Hello world')

Run results for: Measure Single Text

Using various methods to measure a single string of text.

offsetWidth

getBoundingClientRect

canvas